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Office supplies; artists and teachers materials – Equipment for writing – drawing – or for fine arts – Guide

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D19 40, D3247, 1906

Patent

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D03804933

REFERENCES:
patent: D26251 (1896-11-01), Copland
patent: D32159 (1900-01-01), Nisbet
patent: D223732 (1972-05-01), Misenko
patent: D314865 (1991-02-01), Tuisku
patent: D328526 (1992-08-01), Bianchi, Jr. et al.
patent: D332467 (1993-01-01), Bardman
patent: 2091662 (1937-08-01), Umansky
patent: 2409019 (1946-10-01), Cree
patent: 2690017 (1954-09-01), Neill
patent: 4262422 (1981-04-01), Pass

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